Portion of a shoe midsole



FIG. 1 is a front perspective view of a portion of a shoe midsole showing my new design.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a side elevational view thereof.

FIG. 4 is another front perspective view showing a second embodiment of my new design.

FIG. 5 is another rear perspective view showing the second embodiment of my new design; and,

FIG. 6 is another side elevational view showing the second embodiment of my new design.

The broken lines immediately adjacent to the shaded areas represent an unclaimed boundary of the design. The broken line showing of the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe midsole, as shown and described. 